# Last IP vs. Registration and Posting IP

**URL:** <https://meta.discourse.org/t/last-ip-vs-registration-and-posting-ip/14884>\
**Category:** Feature\
**Created:** [Abril 19, 2014, 10:54am UTC](https://meta.discourse.org/t/last-ip-vs-registration-and-posting-ip/14884 "2014-04-19T10:54:46Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![Mittineague](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/mittineague/32/114259_2.png) [@Mittineague](https://meta.discourse.org/u/Mittineague)\
**Post date:** [Abril 19, 2014, 10:54am UTC](https://meta.discourse.org/t/last-ip-vs-registration-and-posting-ip/14884/1 "2014-04-19T10:54:47Z")

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Continuing the discussion from [What about the spam problem?](https://meta.discourse.org/t/what-about-the-spam-problem/2724/10):

I have reservations about outright blocking by IP. But …

Even though the number of IPs that can be abused is effectively infinite. I have found it extremely helpful using Registration IP to identify possible and probable problem accounts. - I currently have over 180K associated with Banned accounts.

Most often the IP used to register is not the same IP used to post.

Unless I’m wrong, it seems that Discourse uses the Last IP. i.e.  
if no posts == registration IP  
else == posting IP

I strongly believe that having both would be of great benefit for moderating.

Any chance of getting this worked into the Core?

My thinking is we’ll be writing custom code to enhance moderation anyway, but we can only work with what information is available.

@zogstrip ??

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